Guardian manufactures the world's most reliable & rugged Water-proof, Weather-resistant, Explosion-proof, Hazardous-area, Emergency & Industrial Telephones, PaGa Comm. systems & Acoustic booths rated for Class I Div. 1 & 2 and Zone 1 & 2 hazardous environments. We distribute through a worldwide network of VARs, Distributors & System Integrators.